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Unit 6 earth forces relative dating

Ask the students what observations they can make about the history of life on Earth based on the time line.

They should note that, during Earth's first billion years, no life existed at all.

Assign one of the following organisms to each student, or have students work with partners and assign one organism to each pair: bacteria, cynobacteria, plants, invertebrates, fish, amphibians, reptiles, birds, first mammals, Java man, Peking woman, Australopithecus boisei , Neanderthal man, Cro-Magnon man, modern-day humans.

Distribute index cards to students, and have them use markers to write on the index cards the names of their organisms and the approximate number of years ago they appeared on Earth (for example, "bacteria—3.6 billion years ago," or "birds—200 million years ago").

Because of this, we tend to think that 80 years is a very long time. 2 Peter 3:8 says that a thousand years to God is like a day.

That is because as an eternal being, time has no meaning.

Prior to the late 1700's, the accepted method of belief in earth's history was based on a concept called catastrophism.

Catastrophism says that the earth is very young, about 6,000 to 10,000 years old.

Explain to the students that the scale is not exactly correct, but the numbers are so large that it will give them a good idea of relative time periods.

(light brown) Next, fossil-rich sedimentary rocks were precipitated.

These rocks are tilted due to deposition on the non-horizontal surfaces of primitive rocks.

We currently offer two versions of the NGSS middle school program: a subject-specific learning progression version and an integrated learning progression version designed for California schools.

To use the programs on an i Pad you will need to install the Zingy i Pad apps. Click on the links below to install the Zingy apps on your ipad.

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To examine the world we live in, we must expand our concept of what a long time period is.

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